Hi all,
Greetings!
In the PDS node (http://geo.pds.nasa.gov/missions/mro/sharad.htm), for the Derived Data Products (DDR), the lbl files hold the information for the data file). In the lbl files, there are for values for the latitude and longitude:
MRO:START_SUB_SPACECRAFT_LONGITUDE = 97.749998 <DEG>
MRO:START_SUB_SPACECRAFT_LATITUDE = -24.689301 <DEG>
MRO:STOP_SUB_SPACECRAFT_LONGITUDE = 95.934470 <DEG>
MRO:STOP_SUB_SPACECRAFT_LATITUDE = -37.625862 <DEG>
However, if one observation has a very large latitude range (say 30 - 50 degrees), using only two points (start and end) can not show the accurate ground track (since Mars is rotating). If I only have two points and the straight line between them, it is not correct (I guess the real ground track should looks curve ?)
So how can I get accurate ground track for each orbit?
Thanks in advance,
Jun